Misty Marsh is a busy mom of four and when she's in a pinch for dinner, she turns to her freeze-dried favorites.

"If I just need a quick meal in 10 or 15 minutes, I can do that using all freeze dried ingredients."

Marsh shares recipes and tips in a book about the freeze-dried frenzy, and has a website, too. Her pantry is full of enough food to feed her family for several years.

"If you're making a soup, you can scoop out a scoop of chicken, scoop out a scoop of onions, some carrots, and dump it all in a pot add some water and some seasoning and simmer, and you'll have a soup in five minutes."

"You can also get fully made meals like lasagnas, or meat loafs. Basically, anything that you would normally cook can be freeze dried," said Alissa Rumsey, Academy of Nutrition and Dietetics.

Rumsey is a registered dietitian and said sales are exploding and it is not just full meals and individual ingredients.